mirror of
https://github.com/vivier/EMILE.git
synced 2024-12-23 01:29:34 +00:00
137 lines
3.9 KiB
C
137 lines
3.9 KiB
C
/*
|
|
*
|
|
* (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <malloc.h>
|
|
#include <scsi/scsi.h>
|
|
#include "bank.h"
|
|
#include "misc.h"
|
|
#include "glue.h"
|
|
|
|
#define COMPLETION_TIMEOUT 300
|
|
|
|
static int scsi_command(int target, char* cdb, int count, TIB_t* tib)
|
|
{
|
|
int err;
|
|
short stat;
|
|
short message;
|
|
|
|
err = SCSIGet();
|
|
if (err != noErr)
|
|
{
|
|
printf("Cannot get SCSI bus (%d)\n", err);
|
|
return err;
|
|
}
|
|
|
|
err = SCSISelect(target);
|
|
if (err != noErr)
|
|
{
|
|
printf("Cannot select target %d (%d)\n", target, err);
|
|
return err;
|
|
}
|
|
|
|
err = SCSICmd(cdb, count);
|
|
if (err != noErr)
|
|
{
|
|
printf("Cannot send command (%d)\n", err);
|
|
goto complete;
|
|
}
|
|
|
|
err = SCSIRead(tib);
|
|
if (err != noErr)
|
|
{
|
|
printf("Cannot read data (%d)\n", err);
|
|
goto complete;
|
|
}
|
|
|
|
complete:
|
|
err = SCSIComplete(&stat, &message, COMPLETION_TIMEOUT);
|
|
if (err != noErr)
|
|
{
|
|
printf("Cannot complete transaction %d %d(%d)\n",
|
|
stat, message, err);
|
|
return err;
|
|
}
|
|
|
|
return noErr;
|
|
}
|
|
|
|
int scsi_INQUIRY(int target, char *buffer, size_t count)
|
|
{
|
|
char cdb[6];
|
|
TIB_t tib[2];
|
|
|
|
cdb[0] = INQUIRY;
|
|
cdb[1] = 0;
|
|
cdb[2] = 0;
|
|
cdb[3] = 0;
|
|
cdb[4] = count;
|
|
cdb[5] = 0;
|
|
|
|
tib[0].opcode = op_no_inc;
|
|
tib[0].param1 = (int)buffer;
|
|
tib[0].param2 = count;
|
|
tib[1].opcode = op_stop;
|
|
tib[1].param1 = 0;
|
|
tib[1].param2 = 0;
|
|
|
|
return scsi_command(target, cdb, 6, tib);
|
|
}
|
|
|
|
/******************************************************************************
|
|
+=====-========-========-========-========-========-========-========-========+
|
|
| Bit| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|
|
|Byte | | | | | | | | |
|
|
|=====+=======================================================================|
|
|
| 0 | Operation code (28h) |
|
|
|-----+-----------------------------------------------------------------------|
|
|
| 1 | Logical unit number | DPO | FUA | Reserved | RelAdr |
|
|
|-----+-----------------------------------------------------------------------|
|
|
| 2 | (MSB) |
|
|
|-----+--- ---|
|
|
| 3 | |
|
|
|-----+--- Logical block address ---|
|
|
| 4 | |
|
|
|-----+--- ---|
|
|
| 5 | (LSB) |
|
|
|-----+-----------------------------------------------------------------------|
|
|
| 6 | Reserved |
|
|
|-----+-----------------------------------------------------------------------|
|
|
| 7 | (MSB) |
|
|
|-----+--- Transfer length |
|
|
| 8 | (LSB) |
|
|
|-----+-----------------------------------------------------------------------|
|
|
| 9 | Control |
|
|
+=============================================================================+
|
|
******************************************************************************/
|
|
|
|
int scsi_READ(int target, unsigned long offset, unsigned short nb_blocks,
|
|
char *buffer, int buffer_size)
|
|
{
|
|
char cdb[10];
|
|
TIB_t tib[2];
|
|
|
|
cdb[0] = READ_10;
|
|
cdb[1] = 0;
|
|
cdb[2] = (offset >> 24) & 0xFF;
|
|
cdb[3] = (offset >> 16) & 0xFF;
|
|
cdb[4] = (offset >> 8) & 0xFF;
|
|
cdb[5] = offset & 0xFF;
|
|
cdb[6] = 0;
|
|
cdb[7] = (nb_blocks >> 8) & 0xFF;
|
|
cdb[8] = nb_blocks & 0xFF;
|
|
cdb[9] = 0;
|
|
|
|
tib[0].opcode = op_no_inc;
|
|
tib[0].param1 = (int)buffer;
|
|
tib[0].param2 = buffer_size;
|
|
tib[1].opcode = op_stop;
|
|
tib[1].param1 = 0;
|
|
tib[1].param2 = 0;
|
|
|
|
return scsi_command(target, cdb, 10, tib);
|
|
}
|